User-Agent: Mozilla/5.0 (X11; U; Linux i686; en-US; rv:1.9.2.13) Gecko/20101206 Ubuntu/10.10 (maverick) Firefox/3.6.13 Build Identifier: Lightning 2011-01-15 nightly / Thunderbird 3.1.7 / Ubuntu 10.10 When a task is selected and focused in the today pane, pressing the Spacebar marks the task as Completed AND goes to the next unread email. That's not good because if I'm looking at the thread pane and see Thunderbird go to the next unread email, I'm likely to not notice that the task has been marked as completed and disappeared from the today pane. Reproducible: Always Steps to Reproduce: 1. Have an Unread email in the current mailbox. 2. Select a Read email higher in the thread pane. 3. Set the today pane to hide completed tasks. 4. Select an incomplete task. 5. Do something else until you forget that you've given focus to the task list. 6. Look at the thread pane and press the spacebar. Actual Results: The next unread email is selected, the task is marked as completed and removed from the today pane. Expected Results: The task should be marked as completed and removed from the today pane. Thunderbird shouldn't advance to the next unread email to make it clear that the folder pane, thread pane, and message pane don't have focus so something else must have happened when I pressed the spacebar.

Pete, is this still an issue using the recently released Lightning 1.0 (compatible with Thunderbird 8)?

(In reply to Martin Schröder [:mschroeder] from comment #1) > Pete, is this still an issue using the recently released Lightning 1.0 > (compatible with Thunderbird 8)? Yes.

It also happens on Windows.